Mark A. Kellner

KELLNER: Apple’s Mountain Lion upgrade worth $20

In its first four days on the market, Apple Inc.'s OS X 10.8 operating system release, also called Mountain Lion, was downloaded more than 3 million times, the firm announced Monday. That makes it "the most successful OS X release" of the nine major OS X versions, Apple said in a statement. Published August 1, 2012

KELLNER: Live from New York: Aereo mobile TV

It was during a late Sunday evening dinner recently when I realized the value of a service, not yet generally available outside New York City, called Aereo. Published July 25, 2012

KELLNER: With new Office, Microsoft aims for the cloud

Apparently forgetting what happened when a certain soft drink company rebranded its flagship product as "New Coke," Microsoft Corp. on Monday announced "the new Office,” as a press release called it, an applications suite that will respond to your touch on a screen, a keyboard or a stylus glided across a screen. Published July 18, 2012

KELLNER: Stephen R. Covey transcended his time

Of the millions who have traveled on New York City's subways, perhaps none had as transformative a journey -- for himself and, later, for millions around the world -- as Stephen R. Covey did one Sunday morning decades ago. Published July 17, 2012

Stephen Covey, ‘7 Habits’ author, dead at 79

Stephen R. Covey, 79, a onetime management professor at Brigham Young University who burst into global prominence with "The 7 Habits of Highly Effective People," died Monday at a hospital in Idaho Falls, Idaho. He was 79 years old. Published July 16, 2012

KELLNER: Be prepared, disasters will happen

Writing to French physicist Jean Baptiste Leroy some 223 years ago, 83-year-old Benjamin Franklin reported that the young American republic was under way: "Our Constitution is in actual operation. Published July 11, 2012

KELLNER: Utilities’ Web smarts could have helped powerless

One day after having electricity restored at home, it's beginning to seem like a very bad dream: About 81 hours without power, with sweltering temperatures and the contents of a refrigerator-freezer relocated to the trash. Published July 4, 2012

KELLNER: Flat-file database Bento won’t leave users flat-footed

Simplicity and software are words not often found together: A glance at the toolbars for, say, Microsoft's Word or Excel programs will confirm that. Even working with something as relatively simple as a portable document file (PDF) document can become a little intimidating as Adobe Acrobat pops into view. Published June 27, 2012

KELLNER: Diversionary strategy may fail Microsoft

I was planning to write about something important -- some new software -- this week, but like a pushy diner at a groaning buffet, Microsoft Corp. elbowed its way in. Published June 20, 2012

KELLNER: When traveling, resourcefulness helps

In the evening, a cooling breeze blows onshore from the Sea of Galilee, or the Kinneret, as it's known in Hebrew. During June days, temperatures can top 100 degrees Fahrenheit. Published June 13, 2012

KELLNER: The last Windows operating system?

Here's a thought: Microsoft's Windows 8 operating system, available as a free "preview" now and due in stores this autumn, might be the last operating system to bear the Windows name. Published June 6, 2012

KELLNER: Shopping tips for dads, grads and you

Although Mother's Day is just behind us, the spring-summer gift-giving season is by no means over. For graduates and for dads, a tech gift might loom large. (And if Mom wasn't happy with the "Hunger Games" book set you presented, something tech-oriented might get you out of the doghouse.) Published May 16, 2012

KELLNER: Business cards via Internet a small, vital part of revolution

The humble business card may seem truly old-fashioned, even out of place, in a digital epoch where we can share our contact information via email, Facebook or LinkedIn. But there's still a place for something printed with one's name, title, company and address on it. Until a few years ago, the options for buying those cards usually involved investments of time and money - often a fair amount of both. Published May 9, 2012

Muslim, Mormon growth spurts found

Mormonism and Islam are among the fastest growing religions in America, while just over half of all Americans are unaffiliated with any denomination, according to a major census of the country's religious congregations published Wednesday. Published May 2, 2012

KELLNER: Photography’s digital evolution scoped out on F Street

I was wearing slacks, a dress shirt, tie and jacket as I ambled up to the new Leica Store at 977 F St. NW the other day - a few doors down from a L'Occitane en Provence outlet - and I'm glad I was. Published May 2, 2012

KELLNER: The bearable lightness of computing on working vacation

While many wander around the Barcelo Bavaro Beach resort in search of the perfect tan - or a cool beverage - your columnist is here attending a conference and working as part of the sponsoring organization. Published April 25, 2012

Chuck Colson, Nixon’s ‘hatchet man,’ dies at 80

Chuck Colson, 80, the onetime "hatchet man" to President Nixon who devoted his post-political career to Christian causes and an international ministry to prisoners, died Saturday at Inova Fairfax Hospital. Complications from bleeding on the brain are believed to have contributed to his final illness. Published April 21, 2012

KELLNER: More marvelous accessories for iPad and beyond

Perhaps one sign of a truly worthwhile product - to this reviewer, at least - is when one goes scurrying back to the office, after hours, for fear the item may be lost. Published April 18, 2012

KELLNER: Nokia’s ignoble effort at an iPhone killer

Nine years ago, on a trip to Tampere, Finland, I rode past the nearby city of Nokia, my host telling me that the then- and still-famous maker of cellphones started life there as several companies, one of which made products out of rubber, including fishing boots. Published April 11, 2012

KELLNER: Two extra days for tax prep, but time to get serious

Procrastinators across the land get a break this year: Tax filing day is April 17. It's normally the 15th, but that falls on a Sunday this year. The next day is Emancipation Day in the District of Columbia and Patriots' Day in Massachusetts. So, we all get 48 more hours to sweat over our returns. Published April 4, 2012